<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 添加搜索区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>

        <el-col :span="4">
          <el-button type="primary" @click="adduser">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <!-- 作用域插槽 slot-scope="scope" -->
          <template v-slot="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">

            <el-tooltip effect="dark" content="修改" placement="top">
              <el-button type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>
            </el-tooltip>


            <el-tooltip effect="dark" content="删除" placement="top">
              <el-button type="danger" icon="el-icon-delete" circle @click="removeUserById(scope.row.id)"></el-button>
            </el-tooltip>

            <el-tooltip effect="dark" content="分配角色" placement="top">
              <el-button type="warning" icon="el-icon-star-off" circle @click="setRole(scope.row)"></el-button>
            </el-tooltip>

          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>


    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主题区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>

        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>

        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>

        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>

      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="userChecking">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户信息" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">

      <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">

        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>


        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>

        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
      <div>
        <p>当前的用户:{{ userinfo.username }}</p>
        <p>当前的角色:{{ userinfo.role_name }}</p>
        <p>分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import api from '@/api/index'
export default {
  name: 'Users',
  data() {
    //验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      //验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        //合法的邮箱
        return cb()
      }

      cb(new Error('请输入合法的邮箱'))
    }

    //验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      //验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

      if (regMobile.test(value)) {
        //合法的手机号
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }

    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      addDialogVisible: false,
      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      //添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名的长度在3~10个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '用户名的长度在6~15个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },

      //查询到的用户信息对象
      editForm: {},
      //修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      //控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      //想要被分配角色的用户信息
      userinfo: {},
      //需要被分配角色的数据列表、
      rolesList: [],
      //已选中的角色的id值
      selectedRoleId: ''
    }

  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const result = await api.users({
        params: this.queryInfo
      })
      if (result.meta.status !== 200) return this.$message.error('获取用户列表失败!!')
      this.userlist = result.data.users
      this.total = result.data.total
      console.log(this.userlist, this.total);
    },
    //监听pageSize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },

    // 监听页面值，改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //监听switch开关状态的改变
    async userStateChanged(userinfo) {
      const res = await api.usersState({
        id: userinfo.id,
        mg_state: userinfo.mg_state
      })
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败!')
      }
      this.$message.success('更新用户状态成功')

    },

    //添加用户
    adduser() {
      this.addDialogVisible = !this.addDialogVisible
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //验证规则
    userChecking() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        //发送添加用户的网络请求
        const result = await api.usersAdd({
          username: this.addForm.username,
          password: this.addForm.password,
          email: this.addForm.email,
          mobile: this.addForm.mobile,
        })
        if (result.meta.status !== 201) return this.$message.error('添加用户失败')

        this.$message.success('添加用户成功')
        //隐藏添加用户的对话框
        this.addDialogVisible = false

        //重新获取用户的列表数据
        this.getUserList()
      })

    },

    //展示编辑用户的对话框
    async showEditDialog(id) {

      const result = await api.userSet({
        id: id
      })
      if (result.meta.status !== 200) return this.$message.error('查询用户信息失败！')
      this.editForm = result.data
      this.editDialogVisible = true

    },

    // 监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return;
        const result = await api.userSubmit({
          id: this.editForm.id,
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (result.meta.status !== 200) return this.$message.error('更新用户状态失败!')

        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('更新用户状态成功')
      })


    },
    //根据Id删除对应的用户信息
    async removeUserById(id) {
      //弹出框询问用户是否删除数据
      await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        const result = await api.usersdelete({
          id
        })
        console.log(result);
        if (result.meta.status !== 200) return this.$message.error('删除用户信息失败')

        this.$message.success('删除用户信息成功')
        this.getUserList()
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        });
      });



    },

    //展示分配角色的对话框
    async setRole(userinfo) {
      this.userinfo = userinfo
      //再展示对话框之前,获取所有角色的列表
      const result = await api.rolesList()
      if (result.meta.status !== 200) return this.$message.error('获取角色列表失败!')

      this.rolesList = result.data

      console.log(this.rolesList);
      this.setRoleDialogVisible = true
    },
    //点击按钮 分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const result = await api.assignRoles({
        id: this.userinfo.id,
        rid: this.selectedRoleId
      })
      console.log(result);

      if (result.meta.status !== 200) {
        return this.$message.error('更新角色失败!!')
      }
      this.$message.success('更新角色成功!!')
      this.getUserList()
      this.setRoleDialogVisible = false
    },

    //监听分配角色对话框的关闭事件
    setRoleDialogClosed(){
      this.selectedRoleId = ''
      this.userinfo ={}
    }
  }
}
</script>

<style>
</style>